| ID | Description | Special notes |
|---|
| 1 | Plain text (default if not set) | Message text should be encoded using ISO-8859-1/ASCII |
| 8 | Raw binary UDH, 8-bit encoded message including a UDH | Message bytes should be HEX-encoded |
| 9 | Unicode (UCS2) | Message text should be the HEX representation of UCS2 (aka Big Endian Unicode) encoded message |